[多选题]下列对紧急制动描述正确的是()。
A.紧急制动平均减速率设计为1.2m/s2
B.仅由空气制动完成,可由多个系统施加
C.紧急制动命令可恢复
D.当通过紧急制动按钮施加紧急制动时,受电弓降弓,高速断路器断开。

[判断题] 作业人员应身体健康，无妨碍工作的病症，体格检查至少两年一次。( ) (1.0分)
A.正确
B.错误

[判断题]钢和铁是黑色金属的两大类,都是以铁和碳为主要元素的合金;含碳量在2.11%以下的铁碳合金称为钢,含碳量2.11%~6.67%的铁碳合金称为铸铁。
A.正确
B.错误

[多选题]磁粉探伤检测按顺序分为：“ ”、观察及后期处理5个步骤。
A.前期处理
B.磁化
C.磁粉使用
D.中期处理

[单选题]在我国的国际收支平衡表中,各种实物和资产的往来均以( )作为计算单位。
A.人民币
B.美元
C.欧元
D.英镑

[单项选择]哪个项目类型可以从增强和监控调试最受益（）。
A. 数据中心
B. 办公建筑
C. 仓库
D. 零售商店

[单选题]下列会议旨在纠正“左”倾错误的是( )。
A.八七会议、遵义会议、中共七大
B.遵义会议、中共七大、中共十一届三中全会
C.遵义会议、七千人大会、中共十一届三中全会
D.八七会议、洛川会议、中共七大

[多选题]人员密集场所应该按照公安部令第61号的规定切实履行自身的消防安全职责,做到( )。
A.消防安全自查
B.违法行为自处
C.火灾隐患自除
D.火灾事故自查
E.消防安全责任自负

[单选题]( )闭塞区间，超长列车头部越过出站信号机(未压上出站方面的轨道电路)发车时调度员应发布调度命令。
A.自动
B.半自动
C.自动站间
D.路签牌

[单选题]进入现场的摄像员、宣传员、( )、单位技术人员等,也必须按照相关要求进行等级防护,并编组管理,严禁单独作业。
A. 战斗员
B. 安全员
C. 通信员
D.业务员

[多选题]下列不属于灭火防护头套功能的是( )?
A.阻燃
B.防止高温烟气或瞬间火焰对其造成伤害
C.防水
D.保暖吸汗
E.保护头部、面部、颈部等裸露或有空隙的部位F.隔热

[单项选择]钢结构对钢材的要求为强度高;塑性、韧性好;良好的加工性能。因此钢结构设计规范推荐采用何种钢?（）
A. Q235,16Mn,20MnSi;
B. 20MnB、B、,15MnV,25MnSi;
C. 40StzMnV,16Mn,15MnV;
D. Q235,Q345,Q390,Q420。

[填空题]When television first began to expand, very few of the people who had become famous as radio commentators were able to be effective on television. Some of the difficulties they experienced when were trying to 【B1】 themselves to the new medium were technical. When working on radio, for example, they had become 【B2】 to seeing on behalf of the listener. This 【B3】 of seeing for others means that the commentator has to be very good at talking. Above all, he has to be able to 【B4】 a continuous sequence of visual images which 【B5】 meaning to the sounds which the listener hears. In the 【B6】 of television, however, the commentator sees everything with the viewer. His role, therefore, is completely different. He is there to make 【B7】 that the viewer does not miss some point of interest, to help him focus on particular things, and to 【B8】 the images on the television screen. Unlike his radio colleague, he must know the 【B9】 of silence and how to use it at those moments 【B10】 the pictures spe
A. A．definite
B．possible
C．sure
D．clear

[单选题](3分)单选题3破伤风梭菌感染的重要条件为
A.细菌芽胞污染伤口
B.菌群失调
C.伤口的厌氧微环境
D.细菌繁殖体污染伤口
E.机体免疫力低下

[填空题]Once you are hired as a company employee, you will probably have business cards. A business card is printed with your name, title, company, address and (11) . Presenting a business card can provide (12) and help to make a favorable business impression. For example, when you arrive for a business interview, give the secretary your card, pronounce your name clearly, and (13) your business purpose. Sit (14) until the person you want to see arrives or you are told what to do. When you leave, (15) that you thank the secretary for any help she has given you.

[填空题]（ど）よう（び）と （にち）よう（び）は （やすみ）です。

[单选题]部联网中心在记账结果返回日(T日)0:00:00—23:59:59收到发行服务机构返回的记账结果(含正常记账的ETC出口交易记录、确认记账的ETC通行争议交易数据、确认不记账的ETC通行争议交易数据)后,于( )日向发行服务机构和各出口省中心下发ETC通行交易清分通知书。
A.T+1
B.T+2
C.T+3
D.T+4

[多选题] 煤灰熔融性测定的试验气氛有哪两种（ )。　
A.强氧化性气氛
B.弱还原性气氛
C.氧化性气氛
D.强还原性气氛

[单项选择]
Water is the oldest form of transport. The original sailing vessels were replaced by steamboats in the early 1800s and by diesel power in the 1920s. A distinction is generally made between deep-water and navigable inland water transport. Domestic commerce centers on the Great Lakes, canals, and navigable rivers.
In 1975 water transport accounted for 22.6 per cent of total inter-city tonnage. Its relative share of inter-city tonnage was 31.3 per cent in 1947 and 31.7 per cent in 1958. Tonnage declined to 27.9 per cent in 1965 but increased by 1970 to 28.4 per cent. This short- term increase did not stabilize. Market share dropped by 5.8 per cent by 1975. Forecasted market share by 1985 is 18.4 per cent of total inter-city tonnage. The water transport share of revenue has been less than 2 per cent of inter-city freight revenue since 1955.
The exact miles of improved waterways in operation depend in part o
A. The most recent figure is for 1975 and the figure is declining.
B. Water transport’s market share goes up and down frequently.
C. So few miles of inland waterways exist that no one has bothered to count them.
D. You must know whether to include coastwise and inter-coastal shipping in the figure.

[多选题]采用暖棚法时应遵守下列（　　）规定。
A.暖棚应经设计并绑扎牢固
B.所用保温材料应具有阻燃特性
C.施工中应经常检查并备有必要的消防器材
D.地槽式暖棚的槽沟土壁应加固，以防冻土坍塌

[判断题]( )双线反方向接车而无进站信号机时,可派引导人员接车。
A.正确
B.错误

[判断题]在杆塔或横担接地通道良好的条件下，个人保安线接地端允许接在杆塔或横担上。
A.正确
B.错误

[单选题][单选题]列车在正线停放时,司机动车前必须与()联系,得到允许后方可动车。
A.站长
B.经理
C.行车调度员
D.乘务督导员

[判断题]汽车起重机行驶时，车上操作室禁止坐人。
A.正确
B.错误

[单项选择]　　A report consistently brought back by visitors to the US is how friendly, courteous, and helpful most Americans were to them. To be fair, this observation is also frequently made of Canada and Canadians ,and should best be considered North American. There are, of course, exceptions. Small- minded officials, rude waiters, and ill-mannered taxi drivers are hardly unknown in the US. Yet it is an observation made so frequently that it deserves comment. 　　For a long period of time and in many parts of the country, a traveler was a welcome break in an otherwise dull existence. Dullness and loneliness were common problems of the families who generally lived distant from one another. Strangers and travelers were welcome sources of diversion, and brought news of the outside world. 　　The harsh realities of the frontier also shaped this tradition of hospitality. Someone travelling alone, if hungry, injured, or ill, often had nowhere to turn except to the nearest cabin or settlement. It was no
A. rude taxi drivers are rarely seen in the US
B. small-minded officials deserve a serious comment
C. Canadians are not so friendly as their neighbors
D. most Americans are ready to offer help

[判断题]安全检查内容不包括生产安全事故应急预案的制定、演练情况。（ ）
A.正确
B.错误

[判断题]触电者神志不清，判断意识无，有心跳，但呼吸停止或极微弱时，应立即用仰头抬颏法，使气道开放，并对触电者施行心脏按压。
A.正确
B.错误

[多选题]江某驾驶机动车时使用伪造的机动车行驶证被查获,公安机关交通管理部门应当( )。
A..收缴伪造的机动车行驶证
B.扣留该机动车
C.对其处拘留
D.对其处罚款

[多选题]防爆电器设备的防爆类型有( )。
A.隔爆
B.本安
C.增安
D.I型

[单选题]下列除哪项外，常可引起肝细胞性黄疸
A.疟疾
B.急性甲型肝炎
C.中毒性肝炎
D.钩端螺旋体病
E.肝癌

[单选题]靠近探头的干涉区,常被称为( )。
A.近场区
B.声阻抗
C.指数场
D.相位区

[判断题] 在三相四线制系统中,中性线(简称N线)可以流过不平衡电流。
A.正确
B.错误

[单选题]《铁路旅客运输规程》第40条规定，发生车票误售、误购时，在发站应换发（）。
A.A、代用票
B.B、新票
C.C、计算机票
D.D、区段票

[判断题]公共中间格式CIF和QIF的帧频都为25帧/s。 ( )
A.正确
B.错误

[多选题]根据《国家民用航空安全保卫方案》的规定，收到表明正在发生非法干扰行为的信息时，所有单位采取行动的预案采取相应行动包括依照应急处置预案向有关方面（ ）并与有关方面商定行动计划。
A.传递信息
B.收集信息
C.评估信息
D.以上均正确

[多项选择]社区矫正的特点有( )。
A. 多样性
B. 变化性
C. 专业性
D. 福利性
E. 社会性